Please see the linked threads and browse the Inattentive and General ADD Talk sections.

You and other forum members (myself included) have compared and contrasted ADHD, ADHD-PI, ADD, and SCT multiple times in multiple ways in multiple threads in the past month and a half, including on several currently-active threads.

The topic of whether these labels represent the same or different conditions has been discussed ad nauseam in the past several weeks.